Safety guard for circular saws



NOV. 18, 1941. G, A HARLAND 2,263,129

SAFETY GUARD FOR CIRCULAR sAwS Filed March 5, 1940 Patented Nov. 18g,1941 UMTEDsTATEs PATENT OFFICE SAFETY GUARD FOR CIRCULAR SAWS George A.Harland, Mauston, Wis. Application March 5, 1940, Serial No. 322,396

1 Claim.

by the use of my guard, the work is held against l rearward movement,thus eliminating injury to the operator. i

Another object is to provide `a guard that can be installed on certaintypes of circular saws in an easy and expeditious manner, without makingany change whatsoever in the structure of the saw, and the guard issimple in construction, inexpensive to -manufacture and extremelyefflcient in operation, use and service.

This invention also consists in certain other features of constructionand in the combination and arrangement of the `several parts, to behereinafter fully described, illustrated in the accompanying drawing andspecifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which:

through my guard applied to the blade supporting arm or frame of a sawand illustrates the guard in operative position or in grippingengagement with aboard being cut.

Figure 2 is a perspective view of the guard per se.

Referring to the drawing in detail, it will be noted that I haveillustrated my guard as being installed on a saw of the suspended bladetype and which includes a table A, and an arm or frame B having theblade C mounted between the uprights of the frame, as clearly shown inFigure 1, and bridging the uprights is a brace member D. l

The guard as best shown in Figure 2 includes an elongated attachingplate I having slots 2 extending longitudinally thereof, there beingpreferably three slots as shown, one arranged adjacent the ends of theplate l and the other midway its ends, and the slots are adapted toreceive the bolts of bolt and nut connections 3 for securing the guardto the brace member D. l The attaching plate l has formed on orotherwise secured thereto apertured lugs 4 arranged in pairs adjacent tothe ends of the plate and extending through the iugs 4 is a rod iikeboit s provided with a nut as shown. Mounted for pivotal movement on thebolt 5 and between the lugs 4 are the eyed upper ends of rod like arms 6that are flattened asat l at their lower ends, with the flattenedportions formed on a blade member 8 that is provided with a beveledlower edge 9.

From the above description and disclosure in the drawing, it is believedthat the operation of my guard will be obvious, but it might bementioned that the blade member 8 `is disposed in the path of the workas it leaves the saw blade C and is swung thereby to rest upon the uppersurface of the work, but will not interfere with the free feedingmovement thereof. However, in the event the work should become caught inthe saw blade C, the latter causes the work to be kicked rearwardlytoward the operator, and such action willresult in the blade member 8setting up a wedging or gripping action with the work l and thereby holdthe same against rearward movement, as will be apparent upon inspectioni il!) Figure 1 is a` vertical sectional view taken` of Figure 1.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claim.

What I claim is:

A safety guard for a circular saw, comprising an elongated' attachingplate having slots eX- tending -along the length thereof, means fordisposal through the slots for adjustably fixing the yarms to theattaching plate for the disposal of the arms at a rearward inclinationrelative to the saw and toward the work being cut, said varms havingattened lower ends, and a blade member formed on an-d bridging theflattened lower ends for disposal in the path of the work as it leavesthe blade of the saw and having its lower edge beveled to set up agripping engagement against and transverselyV of the work,` in the eventthe latter should become caught n the saw blade, to hold the workagainst rearward movement.

GEORGE A. HARLAND.

